xsl reference to external xsl file

I have a question about xsl. I have 1 huge xsl file (+4000 lines :p) and I would like to split the file in different parts. I use the xsl file to map some schemas in BizTalk and it would be more performant if I split it i开发者_开发技巧n parts, so I can re-use the parts. Anyway, don't mind the BizTalk stuff, how can I reference from my main xsl file to the different parts?

ex.:

    <?xml version="1.0" encoding="UTF-16"?>
    <xsl:stylesheet xmlns:xsl="http://www.w3.org/1999/XSL/Transform">
      <xsl:output omit-xml-declaration="yes" method="xml" version="1.0" />
      <xsl:template match="/">
        <xsl:apply-templates select="/ns1:ADT_A01_231_GLO_DEF" />
      </xsl:template>
      <xsl:template match="/ns1:ADT_A01_231_GLO_DEF">
        <ns1:ADT_A01_25_GLO_DEF>
          <EVN_EventType>
                <xsl:if test="EVN_EventTypeSegment/EVN_1_EventTypeCode">
                  <EVN_1_EventTypeCode>
                    <xsl:value-of select="EVN_EventTypeSegment/EVN_1_EventTypeCode/text()" />
                  </EVN_1_EventTypeCode>
                </xsl:if>
                <EVN_2_RecordedDateTime>
                  <xsl:if test="EVN_EventTypeSegment/EVN_2_RecordedDateTime/TS_0_TimeOfAnEvent">
                    <TS_0_Time>
                      <xsl:value-of select="EVN_EventTypeSegment/EVN_2_RecordedDateTime/TS_0_TimeOfAnEvent/text()" />
                    </TS_0_Time>
                  </xsl:if>
                  <xsl:if test="EVN_EventTypeSegment/EVN_2_RecordedDateTime/TS_1_DegreeOfPrecision">
                    <TS_1_DegreeOfPrecision>
                      <xsl:value-of select="EVN_EventTypeSegment/EVN_2_RecordedDateTime/TS_1_DegreeOfPrecision/text()" />
                    </TS_1_DegreeOfPrecision>
                  </xsl:if>
                </EVN_2_RecordedDateTime>
          </EVN_EventType>
          <PID_PatientIdentification>
            <xsl:if test="PID_PatientIdentificationSegment/PID_1_SetIdPid">
              <PID_1_SetIdPid>
                <xsl:value-of select="PID_PatientIdentificationSegment/PID_1_SetIdPid/text()" />
              </PID_1_SetIdPid>
            </xsl:if>
           </PID_PatientIdentification>
        </ns1:ADT_A01_25_GLO_DEF>
      </xsl:template>
    </xsl:stylesheet>

So I would like to put the "EVN_EventType" and the "PID_PatientIdentification" in another file. Could be that this xsl isnt 100% valid, I quickly copy/pasted something, but you get my point?

Greatly appreciate any help. Thx

Use <xsl:import> at the top level of the stylesheet, to import templates from other stylesheets. You can:

• create a named template for EVN_EventType, put it in EVN_EventType.xsl
• create another named template for PID_PatientIdentification, which you put in PID_PatientIdentification.xsl;
• then import both stylesheets into your main stylesheet
• and call both templates from within your <xsl:template match="/ns1:ADT_A01_231_GLO_DEF"> above.

Read about the <xsl:import> and <xsl:include> instructions. Then use the acquired knowledge.

You can import an xsl from another xsl by using import statement in the main xsl to use template match from another xsl (say A.xsl). The <xsl:import> element has an href attribute whose value is a URI reference identifying the stylesheet to be imported.

<xsl:import href="A.xsl"/>